\(\frac{4}{5}\)
- \(\frac{5}{4}\)
\(\frac{5}{4}\)
- \(\frac{4}{5}\)
Correct answer is D
Where sin θ = \(\frac{opp}{hyp}\) → \(\frac{-3}{5}\)
opp = -3, hyp = 5
using pythagoras formula
hyp\(^2\) = adj\(^2\) + opp\(^2\)
adj\(^2\) = hyp\(^2\) - opp\(^2\)
adj\(^2\) = 5\(^2\) - 3\(^2\) → 25 - 9
adj\(^2\) = 16
adj = 4
cos θ = \(\frac{adj}{hyp}\) → \(\frac{4}{5}\)
In third quadrant: cos θ is negative → - \(\frac{4}{5}\)
In the figure, PT is tangent to the circle at U and QU/RS if TUR = 35º and SRU = 50º&...
If \(y \propto \frac{1}{x^2}\) and x = 3 when y = 4, find y when x = 2....
Find the quadratic equation whose roots are \(\frac{2}{3} and \frac{- 3}{4}\)...
In the diagram, /TP/ = 12cm and it is 6cm from O, the centre of the circle, Calculate < TOP ...
Solve the simultaneous equations x + y = 2 and 3x - 2y = 1 ...
Factorize completely \(x^{2} + 2xy + y^{2} + 3x + 3y - 18\). ...